Exercise 4 Page 723

When adding or subtracting fractions, they should have the same denominator. In this exercise, we have two fractions with different denominators. 5/9 - 5/36Since 36 is a multiple of 9, we can multiply both the numerator and denominator of 59 by 4 to create a common denominator.

5/9-5/36

ExpandFrac

a/b=a * 4/b * 4

5* 4/9* 4-5/36

Multiply

Multiply

20/36-5/36

Now that we have a common denominator, we can proceed to simplifying the expression.

20/36-5/36

SubFrac

Subtract fractions

20-5/36

SubTerms

Subtract terms

15/36